Which of the following grammars can be parsed using LL(1) parsing?
Practice Questions
Q1
Which of the following grammars can be parsed using LL(1) parsing?
Left-recursive grammars
Ambiguous grammars
Non-left-recursive and unambiguous grammars
Context-free grammars only
Questions & Step-by-Step Solutions
Which of the following grammars can be parsed using LL(1) parsing?
Step 1: Understand what LL(1) parsing means. LL(1) is a type of top-down parsing method that reads input from left to right and constructs a leftmost derivation of the sentence using one lookahead token.
Step 2: Identify the characteristics of grammars that can be parsed using LL(1). These grammars must be non-left-recursive, meaning they do not have rules that allow a non-terminal to eventually lead back to itself without consuming any input.
Step 3: Check if the grammar is unambiguous. An unambiguous grammar has only one way to derive a string, which is necessary for LL(1) parsing to work correctly.
Step 4: Analyze the given grammars to see if they meet the criteria of being non-left-recursive and unambiguous.
Step 5: Select the grammars that satisfy both conditions as those that can be parsed using LL(1) parsing.
